Age gap, divorce, two kids.

Rebecca • Baby 1 due late Jan 👶🏼🤰🏼💗💗💗
I got asked out at work, one of my jobs is in a retail store. I did not know his age when I agreed to dinner. 
At dinner we were talking and he is eleven years older than I am. Divorced. And has two children aged 11 and 9. 
I'll be 21 in October. 
I feel like it wouldn't have been quite so shocking if they could hypothetically be mine age wise. But I'm only eleven years older than his daughter! 
He is a very nice person so it seems so I am trying to not be biased on it. 
He supports his children and ex wife completely as she refuses to get a job. 
I'm just a touch overwhelmed. I didn't ever picture myself as the second family or anything of the like. 
Edit
I got to work an hour ago to this! And we're going zip lining Sunday afternoon.